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AssemblyAI: EU endpoint session failures on Universal 3.5 Pro Realtime

Impact: majorStatus: resolvedStarted Resolved (7 min)5 updatesSource: stspg.io (opens in new tab)
Summary

AssemblyAI reported a major Universal 3.5 Pro Realtime outage: EU endpoint users could not create streaming sessions and received code 3005 during 13:00–13:12 UTC; US users were unaffected. The incident started at 2026-08-19 13:17 UTC and resolved at 2026-08-19 13:24 UTC (7 min), after a fix restored session creation.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: APIs - Streaming APIStreaming API

Timeline of updates

  1. investigating

    We're currently investigating an issue affecting users on our Universal 3.5 Pro Realtime model, where new streaming sessions could not be created on our EU endpoint. This occurred from 13:00–13:12 UTC. Affected users are seeing a 3005 close code. Users on the US endpoint are unaffected.

  2. identified

    The issue has been identified and a fix is being implemented.

  3. monitoring

    A fix has been implemented and our team is monitoring the results. Users can now create new realtime sessions successfully.

  4. monitoring

    We are continuing to monitor for any further issues.

  5. resolved

    This incident has been resolved. From 13:00–13:12 UTC, users creating new streaming sessions using the EU endpoint were receiving a 3005 close code.

Rewindex changes for this incident

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). AssemblyAI profile · Recent AssemblyAI incidents · Markdown · JSON